What is meant by resolving power of a telescope ? – InterviewSolution

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1.

What is meant by resolving power of a telescope ?

Answer»

Resolving power is the reciprocal of the smallest angular separation between two distant objects which can be observed distincly using a telescope.

If θ \([=\frac{1.22\lambda}{D}]\) be the angular separation, then resolving power = \(\frac{1}{\theta}\) = \(\frac{D}{1.22\lambda}\) ;

[D = Aperture of objective lens]

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